Question

In the adjoining figure 10.24, identify.
(i) Five pairs of adjacent angles
(ii) Two linear pairs of angles.
(iii) Two pairs of vertically opposite angle.​

Answer 1

Answer:

1. two adjacent angles are.

a.angle con and angle boa.

because they have common vertex ob.

2.angle boc and angle cod they also have common vertex oc .

2. two linear pair.

a.angleDOB plus angleBOA=180.

B.angleDOE plus angle EOA=180.

3.two vertically opposite angles.

a.angleAOE=angle DOC.

B.angleDOE=angleBOA.

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Answer 2

5 pairs of adjecent angles are:-

AOB,AOE

AOE,EOD

EOD,DOC

DOC,COB

COB,AOB..

2 linear pairs are:-

DOC,COA

DOB,BOA

EXTRA ONE MORE IS THERE:- AOE,EOD

2 vertically opposite angles:-

COD,AOE

COB,DOE

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